[EN] NOVEL PRODRUGS OF DITHIOL MUCOLYTIC AGENTS<br/>[FR] NOUVEAUX PROMÉDICAMENTS D'AGENTS MUCOLYTIQUES À BASE DE DITHIOL
申请人:PARION SCIENCES INC
公开号:WO2016176423A1
公开(公告)日:2016-11-03
Provided are mucolytic compounds that are more effective, and/or absorbed less rapidly from mucosal surfaces, and/or are better tolerated as compared to N-acetylcysteine (NAC) and DTT. The compounds are represented by compounds of Formula I which embrace structures (la)-(Ib), where the structural variables are as defined herein.
Synthesis of pyrazine-bridged diimidazolium salts and their application in palladium catalyzed Heck-type coupling reactions
作者:Mareike C. Jahnke、Mukhtiar Hussain、Florian Hupka、Tania Pape、Saqib Ali、F. Ekkehardt Hahn、Kingsley J. Cavell
DOI:10.1016/j.tet.2008.11.008
日期:2009.1
Reaction of imidazole derivatives with 2,3-di(bromomethyl)pyrazine results in the formation of the new pyrazine-bridged diimidazolium salts 1–8. These salts proved to be valuable precursors for dinuclear complexes with mixed NHC/pyrazine ligands. Two of the pyrazine-bridged diimidazolium salts 3·H2O and 8·2H2O have been characterized by X-ray diffraction. Furthermore, the first catalytic studies with
Substituted dithiol pyrazine compounds useful as reducing agents in biologically relevant media having formula:
where variables are defined herein and corresponding oxidized pyrazine dithianes. Reducing agents useful to reduce disulfide bonds, particularly in proteins, or to prevent the formation of disulfide bonds, particularly in proteins, and other biological molecules. Reducing agents useful to regulate protein function in proteins in which a sulfhydryl group is associated with biological activity. Reducing agents useful and suitable for application in a variety of biological applications, particularly as research and synthetic reagents. S-acylated dithiol pyrazine compounds, where R
3
is an acyl group, are selectively activated as reducing agents by removal of the S-acyl groups enzymatically or chemically. Dithiol pyrazine reducing agents and corresponding S-acylated dithiol pyrazines, immobilized on surfaces or conjugated to other chemical species, are provided.
Aminotetrahydropyrans as Dipeptidyl Peptidase-IV Inhibitors for the Treatment or Prevention of Diabetes
申请人:Biftu Tesfaye
公开号:US20100234403A1
公开(公告)日:2010-09-16
The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.
Aminotetrahydropyrans as dipeptidyl peptidase-IV inhibitors for the treatment or prevention of diabetes
申请人:Merck Sharp & Dohme Corp.
公开号:US07910596B2
公开(公告)日:2011-03-22
The present invention is directed to novel substituted aminotetrahydropyrans of structural formula I which are inhibitors of the dipeptidyl peptidase-IV enzyme and which are useful in the treatment or prevention of diseases in which the dipeptidyl peptidase-IV enzyme is involved, such as diabetes and particularly Type 2 diabetes. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which the dipeptidyl peptidase-IV enzyme is involved.